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745 articles · page 37 of 38

Tycoon Phishing Kit Uses New Link Obfuscation Techniques

🔐 Barracuda researchers have detailed new link-obfuscation capabilities in the Tycoon Phishing-as-a-Service kit that hide malicious destinations from scanners and recipients. Observed techniques include URL encoding with '%20' invisible spaces, deceptive Unicode characters, hidden codes appended to links, redundant protocol prefixes, and subdomain manipulation. Attacks also incorporate a fake CAPTCHA stage and tools aimed at bypassing multi-factor authentication, enabling more effective email-based social engineering and evasion of traditional filters.
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Google Refutes Claims of Mass Gmail Password Alert

🔔 Google has disputed reports that it issued a blanket warning asking 2.5 billion Gmail users to reset passwords following a recent breach that allegedly affected some Workspace accounts. In a Monday blog post the company called those headlines false and emphasized that Gmail's protections block over 99.9% of phishing and malware. Google advised users to enable two-step verification and adopt passkeys, and it criticized the spread of unverified claims by media and security vendors.
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Fake IT Support Phishing Targets Microsoft Teams Users

🔒 Researchers at Permiso have uncovered phishing campaigns that abuse Microsoft Teams by impersonating IT support to trick employees into installing remote access tools like QuickAssist and AnyDesk. Attackers gain full control of compromised endpoints, deploy credential-stealing malware and establish persistence. Campaigns are linked to the financially motivated actor EncryptHub and use simple impersonation tactics that bypass email defences. Security teams should monitor unusual external Teams activity and verify unexpected support requests.
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115,000 Phishing Emails Leveraged Google Classroom

Check Point uncovered a global phishing campaign that delivered 115,000 fake invitations via Google Classroom to about 13,500 organizations worldwide within a single week. Attackers used seemingly legitimate classroom invites to present unrelated commercial offers and instructed recipients to continue contact via WhatsApp, shifting conversations off monitored email channels. Because many filters treat messages from Google services as trustworthy, these messages often bypass conventional protections. Experts advise staff training, adoption of AI-driven detection that evaluates context and intent, and extending phishing defenses beyond email to collaboration and messaging platforms.
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ShadowSilk Campaign Hits Central Asian Governments

🔍 Group-IB links a broad cyber-espionage campaign, active since 2023 and ongoing into mid‑2025, to the ShadowSilk cluster targeting Central Asian and Asia‑Pacific government organizations. The operation, which has compromised at least 35 government victims, primarily seeks data theft and distributes stolen material on dark web forums. ShadowSilk uses phishing with password‑protected archives, commodity web panels such as JRAT and Morf Project, and post‑compromise tools like Cobalt Strike and Metasploit. Researchers found indicators of both Russian‑ and Chinese‑language operators and advise stronger email defenses, strict application control, regular patching and proactive threat hunting.
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ShadowSilk Targets 35 Government Entities in APAC Region

🔎 Group-IB attributes a new cluster dubbed ShadowSilk to recent intrusions against 35 government and related organizations across Central Asia and APAC. The operators employ spear-phishing with password-protected archives to deploy a custom loader that conceals command-and-control traffic using Telegram bots and achieves persistence via Windows Registry modifications. Observed tooling includes web shells (ANTSWORD, Behinder, Godzilla, FinalShell), tunneling utilities, Cobalt Strike, and bespoke credential-stealing components used to exfiltrate data.
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Retail and Hospitality Data Heists: Digital Extortion Trends

🔒Unit 42 describes how financially motivated actors blend reconnaissance and social engineering to target high-end retailers and other sectors, stealing customer data for extortion. Attackers commonly use voice-based phishing and impersonation to harvest credentials or trick users into running a modified Data Loader for Salesforce, then search SharePoint, Microsoft 365 and Salesforce for PII. Because intrusions often avoid malware, forensic artifacts are minimal, complicating detection and response.
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Phishing Campaign Uses UpCrypter to Deploy Multiple RATs

🔒 FortiGuard Labs has detailed a global phishing campaign that uses personalized HTML attachments and spoofed websites to deliver a custom loader, UpCrypter, which installs multiple remote access tools. The operation uses tailored lures—voicemail notices and purchase orders—embedding recipient emails and company logos to appear legitimate. The delivered ZIPs contain obfuscated JavaScript that runs PowerShell, fetches further payloads (sometimes hidden via steganography) and ultimately loads RATs such as PureHVNC, DCRat and Babylon, while UpCrypter checks for sandboxes, enforces persistence and can force reboots to hinder analysis.
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Applying AI Analysis to Detect Fraud and Exploits in PDFs

🛡️ VirusTotal has extended Code Insights to analyze PDF files by correlating the document’s visible content with its internal object structure. The AI inspects object trees, streams, actions, and the human-facing layer (text/images) to surface both technical exploits and pure social-engineering lures. In early testing it flagged numerous real-world scams—fake debt notices, QR-based credential traps, vishing alerts, and fraudulent tax-refund notices—that traditional engines missed when files contained no executable logic.
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Phishing Campaign Uses UpCrypter to Deploy RATs Globally

📧 Fortinet FortiGuard Labs has observed a phishing campaign using fake voicemail and purchase-order lures to direct victims to convincing landing pages that prompt downloads of JavaScript droppers. The droppers retrieve the UpCrypter loader, which conducts anti-analysis and sandbox checks before fetching final payloads, including various RATs such as PureHVNC, DCRat and Babylon. Attacks since August 2025 have targeted manufacturing, technology, healthcare, construction and retail/hospitality across multiple countries; defenders are urged to block malicious URLs, strengthen email authentication, and monitor anomalous M365 activity.
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Global Phishing Campaign Distributes UpCrypter Loader

📧 FortiGuard Labs identified a global phishing campaign that uses crafted HTML email attachments and personalized phishing pages to deliver obfuscated JavaScript droppers which stage the UpCrypter loader on Microsoft Windows systems. The attack uses target-specific URL reconstruction, convincing domain and logo spoofing, and prompts victims to run a bundled JavaScript dropper. The dropper decodes and executes a Base64 PowerShell payload that performs anti-analysis checks, loads an MSIL loader directly into memory, and ultimately deploys multiple RATs (PureHVNC, DCRat, Babylon RAT). Organizations should apply layered email filtering, endpoint least-privilege, and script/memory-aware detection to block these artifacts.
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Phishing Campaign Exploits Google Classroom: 115K Emails

📚 Check Point researchers uncovered a large-scale phishing campaign that abused Google Classroom to deliver more than 115,000 malicious emails in five coordinated waves over a single week. Attackers used fake classroom invitations carrying unrelated commercial offers to trick recipients across Europe, North America, the Middle East and Asia. The campaign targeted roughly 13,500 organizations and highlights risks when trusted collaboration tools are weaponized.
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Phishing Campaign Targets Ledger Users with Fake Update

🔒 A sophisticated phishing campaign impersonating Ledger targets Nano X and Nano S Plus users with an urgent fake firmware update notice. The email claims fragments of private keys were leaked and urges immediate action, but the sender and update domains are not affiliated with Ledger. A professionally designed scam site hosted on an unrelated domain uses a support chat to coax victims into entering their seed phrase, which grants full wallet access. Organizations and individuals should treat unsolicited firmware alerts cautiously and use trained security controls and awareness to avoid compromise.
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GenAI-Enabled Phishing: Risks from AI Web Services

🚨 Unit 42 analyzes how rapid adoption of web-based generative AI is creating new phishing attack surfaces. Attackers are leveraging AI-powered website builders, writing assistants and chatbots to generate convincing phishing pages, clone brands and automate large-scale campaigns. Unit 42 observed real-world credential-stealing pages and misuse of trial accounts lacking guardrails. Customers are advised to use Advanced URL Filtering and Advanced DNS Security and report incidents to Unit 42 Incident Response.
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AI-powered financial scams flood social media ads now

⚠️ AI-driven deepfake ads on social media are increasingly used to impersonate banks, celebrities and news outlets to lure victims into investment fraud. Campaigns observed in 2024–2025, including the Nomani Trojan activity, use fake or hijacked accounts, localized messaging and deepfake testimonials to harvest credentials or steer targets into scam groups. Reported losses from investment fraud are substantial, so verify offers independently and avoid clicking unsolicited financial ads.
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Mobile Phishers Target Brokerage Accounts in Ramp-and-Dump

📈 Cybercriminals selling advanced mobile phishing kits have shifted from converting stolen cards into mobile wallets to hijacking brokerage accounts for a coordinated ramp and dump scheme that inflates and then collapses foreign and penny stock prices. Vendors such as Outsider (aka Chenlun) offer templates that spoof brokers via iMessage and RCS to harvest logins and SMS one-time codes. Operators use banks of phones and human handlers to preposition, trade, and liquidate positions, leaving victims with worthless shares while brokers and regulators contend with the fallout.
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Unexpected parcel scams: brushing, quishing, and more

📦 Delivery scams now include evolved brushing and QR-based "quishing" campaigns that use unsolicited packages or printed postcards to trick recipients into visiting malicious sites, paying fake fees, or installing malware. Scammers may include QR codes, phone numbers, or counterfeit tracking cards to extract payment data, one-time codes, or to prompt app installs. Never scan printed QR codes or call numbers on unexpected parcels; verify shipments via official courier channels and avoid connecting unknown USB devices. Enable two-factor authentication and report suspicious packages to the courier and police.
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Smashing Security #430: Poisoned Calendar Invites & ChatGPT

📅 In episode 430 of Smashing Security, host Graham Cluley and guest Dave Bittner examine a range of security stories, led by a proof‑of‑concept attack that weaponises Google Calendar invites to trigger smart‑home actions. They also cover a disturbing incident where ChatGPT gave dangerous advice that led to hospitalization and discuss the new Superman trailer. The episode blends technical detail with accessible commentary and practical warnings for listeners.
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Full PowerShell RAT Campaign Targets Israeli Organizations

🔒 The FortiMail Workspace Security team uncovered a targeted intrusion campaign that abused compromised internal email to deliver a multi-stage, fully PowerShell-based Remote Access Trojan targeting Israeli organizations. Phishing links redirected users to a spoofed Microsoft Teams page that instructed victims to press Windows+R, paste an obfuscated Base64 loader, and execute a PowerShell IEX fetch from a hard-coded C2 (hxxps[:]//pharmacynod[.]com), which in turn staged scripts and a compressed, in-memory RAT. The operation uses layered obfuscation, native Windows APIs, and living-off-the-land techniques to enable remote access, surveillance, persistence, lateral movement, and data exfiltration; Fortinet protections detect and block this activity.
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Microsoft announces Phishing Triage Agent public preview

🛡️The Phishing Triage Agent is now in Public Preview and automates triage of user-reported suspicious emails within Microsoft Defender. Using large language models, it evaluates message semantics, inspects URLs and attachments, and detects intent to classify submissions—typically within 15 minutes—automatically resolving the bulk of false positives. Analysts receive natural‑language explanations and a visual decision map for each verdict, can provide plain‑language feedback to refine behavior, and retain control via role‑based access and least‑privilege configuration.
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